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Saarinen, Eliel

(Encyclopedia)Saarinen, Eliel säˈrĭnĕn [key], 1873–1950, Finnish-American architect and city planner, resident of the United States after 1923. In Finland, Saarinen's most celebrated building was the railway...

Perl, Martin Lewis

(Encyclopedia)Perl, Martin Lewis, 1927–2014, American physicist, b. Brooklyn, N.Y., Ph.D. Columbia, 1955. He was a professor at the Univ. of Michigan from 1955 to 1963, when he accepted a position at Stanford; he...

smoke

(Encyclopedia)smoke, visible gaseous product of incomplete combustion. Smoke varies with its source, but it usually comprises hot gas and suspended particles of carbon and tarry substances, or soot. To reduce the a...

statistical mechanics

(Encyclopedia)statistical mechanics, quantitative study of systems consisting of a large number of interacting elements, such as the atoms or molecules of a solid, liquid, or gas, or the individual quanta of light ...

properdin

(Encyclopedia)properdin prōˈpərdən [key], protein found in the blood serum of humans and some of the higher animals that appears to participate in certain specific immune responses. It is associated with the en...

gamma radiation

(Encyclopedia)gamma radiation, high-energy photons emitted as one of the three types of radiation resulting from natural radioactivity. It is the most energetic form of electromagnetic radiation, with a very short ...

mendelevium

(Encyclopedia)mendelevium mĕndəlāvˈēəm [key], artificially produced radioactive chemical element; symbol Md; at. no. 101; mass no. of most stable isotope 258; m.p. 827℃; b.p. and sp. gr. unknown; valence +1...

parochial school

(Encyclopedia)parochial school pərōˈkēəl [key], school supported by a religious body. In the United States such schools are maintained by a number of religious groups, including Lutherans, Seventh-day Adventis...

flotation process

(Encyclopedia)flotation process, in mineral treatment and mining, process for concentrating the metal-bearing mineral in an ore. Crude ore is ground to a fine powder and mixed with water, frothing reagents, and col...

Powell, Cecil Frank

(Encyclopedia)Powell, Cecil Frank, 1903–69, British nuclear physicist, Ph.D. Cambridge, 1927. Powell joined the faculty at the Univ. of Bristol in 1927, was named Melville Wills Professor of Physics in 1948, and ...